The KST DS315MG is a high quality digital servo, fitted with metal gears for strength and reliability. And it is made of high precision metal gear, thus, it can bring your manipulation more exquisite. This specifications are very impressive, masses of torque, excellent speed, perfect for 450 RC helicopter airplane.<br><br>Features:<br>All metal case by CNC.<br>Included 2 ball bearing.<br>With 12mm coreless motor.<br>High precision metal gear.<br>Large stall torgue of 4.8Kg.<br>Small size and light weight.<br>High quality, ideal choice for 450 RC helicopter airplane.<br><br>Specifications:<br>Brand: KST<br>Item model: DS315MG<br>Material: Metal<br>Signal: Digital<br>Connector wire: About 215mm<br>Operating voltage: DC 4.8-8.4V<br>Operating speed: 0.10 sec / 60&deg;@ 4.8V; 0.09 sec / 60&deg; @ 6.0V; 0.08 sec / 60&deg; @ 7.2V; 0.07 sec / 60&deg; @ 8.4V<br>Stall torque: 2.8kg.cm @ 4.8V; 3.5kg.cm @ 6.0V; 4.3kg.cm @ 7.2V; 4.8kg.cm @ 8.4V<br>Working frequency: 1520us/333Hz, 900us-2100us<br>Motor type: 12mm coreless motor<br>Bearing type: 2BB<br>Item size: 27.5 * 23 * 12mm<br>Item weight: 20g (wires included)<br><br>Package Information:<br>Package size: 7.3 * 4.5 * 3.1cm / 2.9 * 1.8 * 1.2in<br>Package weight: 28g / 1.0oz<br>Brand gift box package<br><br>Package List:<br>1 * KST DS315MG Servo<br>3 * Servo Horns and Fittings